Model identification guide |
|
Dating is rather simple, since most Vacs have a date code engraved on the body. You'll find it to the right of the imprint: The first date codes emerged in 1935, but lacking a date code doesn't necessarily mean that the pen was made pre-1935, since many imprints have been worn off. The first date codes came in two digits, where the first digit denoted the quarter and the second the year. Hence a pen with the date code 15 was made in the first quarter of 1935 and 47 was manufactured the fourth quarter of 1937. In the second quarter of 1938 this system was however changed to save production time and a new date code, using a system of dots was adopted. The stamp initially had three dots and for each quarter one dot was filed down leaving none for the fourth quarter. Since production was overlapping examples exist with either the imprint 28 or .8. for the the second quarter of 1938.
|
|